Hi folks. I had the ECM reprogrammed for full time 8 cylinder mode and as advised in the faq, I’m getting a lean bank 1 and bank 2 code. I need to have the relearn procedure done with a scanner, but my scanner isn’t high enough quality to do this. Anybody have suggestions which scanner I can get that won’t break the bank, yet will allow me to do this? My truck is an 08 with the 5.3l engine. Thanks!
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Error codes after ECM reprogramming
Error codes after ECM reprogramming
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Problem solved. I found a cracked pcv boot, replaced it with a piece of clean hose and the rough idle went away, the long and short term fuel trims returned to normal and the check engine light stays out when reset. We're good to go. I did relearn the idle since it was hovering a bit higher than I'd like (900). It calmed down afterwards to 500-550 and is smooth as glass. I needed some justification for the new scan tool anyway, so no harm, no foul.